Opto-electronic device having a light-emitting diode and a light sensor

Abstract

An opto-electronic device includes a substrate, a light sensor and a light-emitting diode having a light-emitting layer of an organic material, wherein the light sensor and the light-emitting diode are monolithically integrated with the substrate.

1 . An opto-electronic position or angle detector, comprising: 
 a substrate;    a light-emitting diode having a light-emitting layer of an organic material;    a plurality of light sensors arranged laterally adjacent to the light-emitting diode,    wherein the light sensors and the light-emitting diode are monolithically integrated with the substrate; and    an optical device arranged opposite the light sensors and the light-emitting diode for directing light emitted from the light-emitting diode to the light sensors, wherein a characteristic of the light received from the light sensors is dependent on the location or the alignment or of a characteristic of the optical device.    
   
   
       2 . The opto-electronic position or angle detector according to  claim 1 , wherein the light sensor and the light-emitting diode are arranged at a surface of the substrate.  
   
   
       3 . The opto-electronic position or angle detector according to  claim 2 , further comprising 
 a conductive trace for contacting the light sensor or the light-emitting diode; and    a passivation layer covering a part of the conductive trace.    
   
   
       4 . The opto-electronic position or angle detector according to  claim 3 , wherein the light-emitting layer of the light-emitting diode is thinner than the passivation layer.  
   
   
       5 . The opto-electronic position or angle detector according to  claim 1 , wherein the light sensor is provided for receiving a light signal which is generated by the light-emitting diode and directed from an optical angle detector to the light sensor.  
   
   
       6 . The opto-electronic position or angle detector according to  claim 1 , comprising a plurality of light-emitting diodes monolithically integrated with the substrate and respectively comprising a light-emitting layer of an organic material.  
   
   
       7 . The opto-electronic position or angle detector according to  claim 1 , wherein the light sensor includes a photodiode or a phototransistor.  
   
   
       8 . The opto-electronic position or angle detector according to  claim 1 , wherein the surface of the substrate is implemented such that a radiation of scattered light from the light-emitting diode to the light sensor is reduced or prevented.  
   
   
       9 . The opto-electronic position or angle detector according to  claim 8 , wherein the light-emitting diode is arranged in a recess in the surface of the substrate.  
   
   
       10 . The opto-electronic position or angle detector according to  claim 1 , including an optical grating for diffracting light by means of interference.  
   
   
       11 . An opto-electronic position or angle detector, comprising: 
 a substrate;    a light-emitting diode having a light-emitting layer of an organic material;    a plurality of light sensors arranged laterally adjacent to the light-emitting diode;    wherein the light sensors and the light-emitting diode are monolithically integrated with the substrate; and    an optical device movably arranged opposite the substrate with regard to the position or angle to be detected, the optical device being arranged opposite the light sensors and the light-emitting diode for directing light emitted from the light-emitting diode to the light sensors, wherein the intensity, the direction or the polarization of the light received from the light sensors is dependent on the location or the alignment of the optical device.